Cell phones on flights fill me with dread as well!
Excellent to hear that the Jitney may have a solution.
If only we could rely on the [sometimes less than
relaxed and polite] plane travelling population
complying.....

The good thing about those 'airphones' was that they
were expensive & this dissuaded people - would this
work for cellphones in flight? I get the feeling that
a price war would break out.